Question

mass of 0.5 mole of H2 gas​

Answer 1

Molar mass of Hydrogen molecule (H₂) = 2 g

No : of moles = 0.5 moles

No : of moles = given mass / molar mass

mass = molar mass × no: of moles

         = 2 × 0.5

mass = 1 g

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Answer 2

Answer:

Molar Mass of Hydrogen gas (H2) = 2

No. of Moles= 0.5

No. of Moles = Given Mass / Molar Mass

0.5 = Given Mass /2

0.5 X 2 = Given Mass

Given Mass = 1 g

Hence, Mass of 0.5 mole of H2 gas is 1g.

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